Milling methods and costs at the concentrator of the Magma Copper Co., Superior, Arizona / by J.H. Rose and J.C. McNabb.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of Commerce, Bureau of Mines,
1930.
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Series: | Information circular (United States. Bureau of Mines) ;
6319. |
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